./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array15_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array15_pattern.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 511c1484167d1d7d90ff27dae8a1569edd7c5a72fd917e4f05baeab770e0fcd4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-08 22:30:53,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-08 22:30:53,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-08 22:30:53,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-08 22:30:53,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-08 22:30:53,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-08 22:30:53,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-08 22:30:53,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-08 22:30:53,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-08 22:30:53,191 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-08 22:30:53,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-08 22:30:53,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-08 22:30:53,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-08 22:30:53,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-08 22:30:53,191 INFO L153 SettingsManager]: * Use SBE=true [2025-01-08 22:30:53,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-08 22:30:53,192 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-08 22:30:53,193 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:30:53,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:30:53,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-08 22:30:53,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-08 22:30:53,194 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 511c1484167d1d7d90ff27dae8a1569edd7c5a72fd917e4f05baeab770e0fcd4 [2025-01-08 22:30:53,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-08 22:30:53,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-08 22:30:53,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-08 22:30:53,356 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-08 22:30:53,356 INFO L274 PluginConnector]: CDTParser initialized [2025-01-08 22:30:53,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array15_pattern.c [2025-01-08 22:30:54,489 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d8f563864/e31e9cfdc3e649198322523c0eb09e3e/FLAG08dbd79bd [2025-01-08 22:30:54,727 INFO L384 CDTParser]: Found 1 translation units. [2025-01-08 22:30:54,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-patterns/array15_pattern.c [2025-01-08 22:30:54,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d8f563864/e31e9cfdc3e649198322523c0eb09e3e/FLAG08dbd79bd [2025-01-08 22:30:55,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d8f563864/e31e9cfdc3e649198322523c0eb09e3e [2025-01-08 22:30:55,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-08 22:30:55,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-08 22:30:55,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-08 22:30:55,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-08 22:30:55,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-08 22:30:55,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6526dd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55, skipping insertion in model container [2025-01-08 22:30:55,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-08 22:30:55,194 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-patterns/array15_pattern.c[1424,1437] [2025-01-08 22:30:55,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:30:55,210 INFO L200 MainTranslator]: Completed pre-run [2025-01-08 22:30:55,216 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-patterns/array15_pattern.c[1424,1437] [2025-01-08 22:30:55,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:30:55,230 INFO L204 MainTranslator]: Completed translation [2025-01-08 22:30:55,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55 WrapperNode [2025-01-08 22:30:55,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-08 22:30:55,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-08 22:30:55,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-08 22:30:55,231 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-08 22:30:55,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,248 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2025-01-08 22:30:55,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-08 22:30:55,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-08 22:30:55,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-08 22:30:55,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-08 22:30:55,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,256 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,266 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-01-08 22:30:55,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-08 22:30:55,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-08 22:30:55,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-08 22:30:55,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-08 22:30:55,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (1/1) ... [2025-01-08 22:30:55,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:30:55,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:30:55,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-08 22:30:55,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-08 22:30:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-08 22:30:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-08 22:30:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-08 22:30:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-08 22:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-08 22:30:55,383 INFO L234 CfgBuilder]: Building ICFG [2025-01-08 22:30:55,384 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-08 22:30:55,485 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-01-08 22:30:55,486 INFO L283 CfgBuilder]: Performing block encoding [2025-01-08 22:30:55,491 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-08 22:30:55,491 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-08 22:30:55,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:30:55 BoogieIcfgContainer [2025-01-08 22:30:55,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-08 22:30:55,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-08 22:30:55,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-08 22:30:55,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-08 22:30:55,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.01 10:30:55" (1/3) ... [2025-01-08 22:30:55,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57aea1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:30:55, skipping insertion in model container [2025-01-08 22:30:55,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:30:55" (2/3) ... [2025-01-08 22:30:55,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57aea1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:30:55, skipping insertion in model container [2025-01-08 22:30:55,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:30:55" (3/3) ... [2025-01-08 22:30:55,498 INFO L128 eAbstractionObserver]: Analyzing ICFG array15_pattern.c [2025-01-08 22:30:55,507 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-08 22:30:55,508 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array15_pattern.c that has 2 procedures, 27 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-01-08 22:30:55,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-08 22:30:55,542 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25b5ab1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-08 22:30:55,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-08 22:30:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:30:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-08 22:30:55,547 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:30:55,548 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:30:55,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:30:55,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:30:55,551 INFO L85 PathProgramCache]: Analyzing trace with hash -982147940, now seen corresponding path program 1 times [2025-01-08 22:30:55,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:30:55,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823798129] [2025-01-08 22:30:55,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:55,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:30:55,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-08 22:30:55,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-08 22:30:55,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:55,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:30:55,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:30:55,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823798129] [2025-01-08 22:30:55,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823798129] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:30:55,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 22:30:55,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 22:30:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649768738] [2025-01-08 22:30:55,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:30:55,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-08 22:30:55,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:30:55,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-08 22:30:55,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-08 22:30:55,667 INFO L87 Difference]: Start difference. First operand has 27 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-08 22:30:55,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:30:55,679 INFO L93 Difference]: Finished difference Result 51 states and 73 transitions. [2025-01-08 22:30:55,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-08 22:30:55,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2025-01-08 22:30:55,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:30:55,686 INFO L225 Difference]: With dead ends: 51 [2025-01-08 22:30:55,686 INFO L226 Difference]: Without dead ends: 23 [2025-01-08 22:30:55,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-08 22:30:55,691 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:30:55,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:30:55,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-01-08 22:30:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-01-08 22:30:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:30:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2025-01-08 22:30:55,715 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 14 [2025-01-08 22:30:55,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:30:55,716 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2025-01-08 22:30:55,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-08 22:30:55,716 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2025-01-08 22:30:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-01-08 22:30:55,718 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:30:55,718 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:30:55,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-08 22:30:55,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:30:55,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:30:55,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1620489843, now seen corresponding path program 1 times [2025-01-08 22:30:55,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:30:55,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468157881] [2025-01-08 22:30:55,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:55,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:30:55,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-08 22:30:55,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-08 22:30:55,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:55,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-08 22:30:55,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:30:55,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468157881] [2025-01-08 22:30:55,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468157881] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:30:55,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224528564] [2025-01-08 22:30:55,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:55,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:55,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:30:55,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:30:55,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-08 22:30:56,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-08 22:30:56,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-08 22:30:56,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:56,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:56,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-08 22:30:56,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:30:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-08 22:30:56,093 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-08 22:30:56,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224528564] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:30:56,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-08 22:30:56,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-01-08 22:30:56,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55013487] [2025-01-08 22:30:56,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:30:56,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-08 22:30:56,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:30:56,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-08 22:30:56,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-08 22:30:56,095 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-08 22:30:56,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:30:56,141 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2025-01-08 22:30:56,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-08 22:30:56,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2025-01-08 22:30:56,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:30:56,142 INFO L225 Difference]: With dead ends: 53 [2025-01-08 22:30:56,142 INFO L226 Difference]: Without dead ends: 30 [2025-01-08 22:30:56,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-08 22:30:56,143 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:30:56,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 64 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:30:56,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-01-08 22:30:56,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2025-01-08 22:30:56,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:30:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2025-01-08 22:30:56,147 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 28 [2025-01-08 22:30:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:30:56,147 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2025-01-08 22:30:56,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-08 22:30:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2025-01-08 22:30:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-08 22:30:56,148 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:30:56,148 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:30:56,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-08 22:30:56,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:56,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:30:56,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:30:56,353 INFO L85 PathProgramCache]: Analyzing trace with hash 125615801, now seen corresponding path program 1 times [2025-01-08 22:30:56,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:30:56,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692607451] [2025-01-08 22:30:56,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:56,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:30:56,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-08 22:30:56,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-08 22:30:56,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:56,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-08 22:30:56,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:30:56,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692607451] [2025-01-08 22:30:56,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692607451] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:30:56,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 22:30:56,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-08 22:30:56,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882558034] [2025-01-08 22:30:56,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:30:56,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 22:30:56,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:30:56,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 22:30:56,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 22:30:56,450 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-08 22:30:56,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:30:56,490 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2025-01-08 22:30:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 22:30:56,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-01-08 22:30:56,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:30:56,491 INFO L225 Difference]: With dead ends: 48 [2025-01-08 22:30:56,491 INFO L226 Difference]: Without dead ends: 29 [2025-01-08 22:30:56,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 22:30:56,492 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:30:56,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:30:56,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-01-08 22:30:56,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2025-01-08 22:30:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:30:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2025-01-08 22:30:56,496 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 30 [2025-01-08 22:30:56,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:30:56,497 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2025-01-08 22:30:56,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-08 22:30:56,497 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2025-01-08 22:30:56,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-01-08 22:30:56,498 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:30:56,498 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:30:56,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-08 22:30:56,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:30:56,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:30:56,499 INFO L85 PathProgramCache]: Analyzing trace with hash -271153937, now seen corresponding path program 1 times [2025-01-08 22:30:56,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:30:56,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047040415] [2025-01-08 22:30:56,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:56,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:30:56,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-08 22:30:56,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-08 22:30:56,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:56,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-08 22:30:56,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:30:56,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047040415] [2025-01-08 22:30:56,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047040415] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:30:56,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506505455] [2025-01-08 22:30:56,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:56,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:56,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:30:56,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:30:56,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-08 22:30:56,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-08 22:30:56,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-08 22:30:56,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:56,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:56,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-08 22:30:56,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:30:56,737 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-08 22:30:56,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:30:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-08 22:30:56,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506505455] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:30:56,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:30:56,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2025-01-08 22:30:56,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10194743] [2025-01-08 22:30:56,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:30:56,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-08 22:30:56,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:30:56,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-08 22:30:56,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-01-08 22:30:56,782 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2025-01-08 22:30:56,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:30:56,876 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2025-01-08 22:30:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-08 22:30:56,877 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 31 [2025-01-08 22:30:56,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:30:56,877 INFO L225 Difference]: With dead ends: 36 [2025-01-08 22:30:56,877 INFO L226 Difference]: Without dead ends: 33 [2025-01-08 22:30:56,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2025-01-08 22:30:56,878 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 30 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:30:56,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 98 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:30:56,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-01-08 22:30:56,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2025-01-08 22:30:56,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:30:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2025-01-08 22:30:56,882 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 31 [2025-01-08 22:30:56,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:30:56,882 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2025-01-08 22:30:56,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2025-01-08 22:30:56,883 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2025-01-08 22:30:56,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-01-08 22:30:56,883 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:30:56,883 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:30:56,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-08 22:30:57,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:57,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:30:57,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:30:57,085 INFO L85 PathProgramCache]: Analyzing trace with hash 650890958, now seen corresponding path program 1 times [2025-01-08 22:30:57,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:30:57,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262135292] [2025-01-08 22:30:57,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:57,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:30:57,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-08 22:30:57,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-08 22:30:57,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:57,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:57,305 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-08 22:30:57,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:30:57,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262135292] [2025-01-08 22:30:57,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262135292] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:30:57,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051984781] [2025-01-08 22:30:57,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:57,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:57,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:30:57,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:30:57,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-08 22:30:57,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-08 22:30:57,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-08 22:30:57,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:57,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:57,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-08 22:30:57,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:30:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-08 22:30:57,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:30:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-08 22:30:57,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051984781] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:30:57,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:30:57,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 12] total 25 [2025-01-08 22:30:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115644739] [2025-01-08 22:30:57,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:30:57,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-08 22:30:57,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:30:57,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-08 22:30:57,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2025-01-08 22:30:57,786 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 25 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 18 states have internal predecessors, (42), 5 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2025-01-08 22:30:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:30:58,340 INFO L93 Difference]: Finished difference Result 127 states and 169 transitions. [2025-01-08 22:30:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-08 22:30:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 18 states have internal predecessors, (42), 5 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 34 [2025-01-08 22:30:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:30:58,342 INFO L225 Difference]: With dead ends: 127 [2025-01-08 22:30:58,342 INFO L226 Difference]: Without dead ends: 106 [2025-01-08 22:30:58,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=310, Invalid=1330, Unknown=0, NotChecked=0, Total=1640 [2025-01-08 22:30:58,345 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 108 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 22:30:58,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 219 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 22:30:58,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-01-08 22:30:58,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 64. [2025-01-08 22:30:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 54 states have internal predecessors, (72), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2025-01-08 22:30:58,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 84 transitions. [2025-01-08 22:30:58,362 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 84 transitions. Word has length 34 [2025-01-08 22:30:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:30:58,362 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 84 transitions. [2025-01-08 22:30:58,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 18 states have internal predecessors, (42), 5 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2025-01-08 22:30:58,362 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 84 transitions. [2025-01-08 22:30:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-01-08 22:30:58,364 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:30:58,364 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:30:58,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-08 22:30:58,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:58,564 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:30:58,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:30:58,565 INFO L85 PathProgramCache]: Analyzing trace with hash 257863948, now seen corresponding path program 1 times [2025-01-08 22:30:58,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:30:58,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847529014] [2025-01-08 22:30:58,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:58,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:30:58,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-08 22:30:58,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-08 22:30:58,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:58,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:30:58,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024066103] [2025-01-08 22:30:58,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:30:58,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:58,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:30:58,581 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:30:58,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-08 22:30:58,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-08 22:30:58,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-08 22:30:58,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:30:58,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:58,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-01-08 22:30:58,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:30:58,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-08 22:30:58,969 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2025-01-08 22:30:58,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 18 [2025-01-08 22:30:59,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-01-08 22:30:59,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:30:59,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:30:59,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:30:59,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847529014] [2025-01-08 22:30:59,355 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:30:59,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024066103] [2025-01-08 22:30:59,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024066103] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:30:59,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-08 22:30:59,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2025-01-08 22:30:59,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095206292] [2025-01-08 22:30:59,355 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-08 22:30:59,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-08 22:30:59,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:30:59,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-08 22:30:59,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=704, Unknown=0, NotChecked=0, Total=870 [2025-01-08 22:30:59,356 INFO L87 Difference]: Start difference. First operand 64 states and 84 transitions. Second operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:30:59,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:30:59,646 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2025-01-08 22:30:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-08 22:30:59,647 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.25) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2025-01-08 22:30:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:30:59,648 INFO L225 Difference]: With dead ends: 113 [2025-01-08 22:30:59,649 INFO L226 Difference]: Without dead ends: 110 [2025-01-08 22:30:59,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2025-01-08 22:30:59,651 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 48 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-08 22:30:59,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 129 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-08 22:30:59,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-01-08 22:30:59,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 91. [2025-01-08 22:30:59,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 77 states have internal predecessors, (101), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-08 22:30:59,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2025-01-08 22:30:59,668 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 34 [2025-01-08 22:30:59,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:30:59,668 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2025-01-08 22:30:59,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.25) internal successors, (25), 17 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:30:59,668 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2025-01-08 22:30:59,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-01-08 22:30:59,669 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:30:59,669 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:30:59,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-08 22:30:59,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-08 22:30:59,870 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:30:59,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:30:59,870 INFO L85 PathProgramCache]: Analyzing trace with hash 600541700, now seen corresponding path program 2 times [2025-01-08 22:30:59,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:30:59,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554302418] [2025-01-08 22:30:59,871 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:30:59,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:30:59,878 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-01-08 22:30:59,887 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-01-08 22:30:59,887 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:30:59,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:30:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-08 22:30:59,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:30:59,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554302418] [2025-01-08 22:30:59,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554302418] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:30:59,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304433613] [2025-01-08 22:30:59,977 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:30:59,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:30:59,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:30:59,980 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:30:59,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-08 22:31:00,012 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-01-08 22:31:00,024 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-01-08 22:31:00,024 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:31:00,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:00,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 22:31:00,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-08 22:31:00,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-08 22:31:00,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304433613] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:00,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:00,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-01-08 22:31:00,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960155287] [2025-01-08 22:31:00,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:00,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-08 22:31:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:00,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-08 22:31:00,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2025-01-08 22:31:00,131 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:00,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:00,234 INFO L93 Difference]: Finished difference Result 135 states and 188 transitions. [2025-01-08 22:31:00,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-08 22:31:00,234 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2025-01-08 22:31:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:00,235 INFO L225 Difference]: With dead ends: 135 [2025-01-08 22:31:00,235 INFO L226 Difference]: Without dead ends: 109 [2025-01-08 22:31:00,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-08 22:31:00,235 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 8 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:00,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 143 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:31:00,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-01-08 22:31:00,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 99. [2025-01-08 22:31:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 85 states have internal predecessors, (113), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-08 22:31:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 131 transitions. [2025-01-08 22:31:00,255 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 131 transitions. Word has length 35 [2025-01-08 22:31:00,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:00,256 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 131 transitions. [2025-01-08 22:31:00,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:00,256 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 131 transitions. [2025-01-08 22:31:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-01-08 22:31:00,257 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:00,257 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:00,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-08 22:31:00,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:00,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:00,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1581600700, now seen corresponding path program 2 times [2025-01-08 22:31:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:00,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902500349] [2025-01-08 22:31:00,463 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:31:00,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:00,472 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-01-08 22:31:00,476 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-01-08 22:31:00,478 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:31:00,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-08 22:31:00,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:00,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902500349] [2025-01-08 22:31:00,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902500349] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:00,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698673521] [2025-01-08 22:31:00,560 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-08 22:31:00,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:00,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:00,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:00,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-08 22:31:00,609 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-01-08 22:31:00,622 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-01-08 22:31:00,622 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-08 22:31:00,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:00,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 22:31:00,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-08 22:31:00,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:00,724 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-08 22:31:00,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698673521] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:00,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:00,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2025-01-08 22:31:00,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516924529] [2025-01-08 22:31:00,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:00,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-08 22:31:00,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:00,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-08 22:31:00,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-01-08 22:31:00,726 INFO L87 Difference]: Start difference. First operand 99 states and 131 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-08 22:31:00,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:00,961 INFO L93 Difference]: Finished difference Result 210 states and 276 transitions. [2025-01-08 22:31:00,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-08 22:31:00,962 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 37 [2025-01-08 22:31:00,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:00,963 INFO L225 Difference]: With dead ends: 210 [2025-01-08 22:31:00,963 INFO L226 Difference]: Without dead ends: 149 [2025-01-08 22:31:00,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2025-01-08 22:31:00,964 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:00,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 187 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:31:00,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2025-01-08 22:31:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 96. [2025-01-08 22:31:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 79 states have internal predecessors, (97), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-08 22:31:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 119 transitions. [2025-01-08 22:31:00,975 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 119 transitions. Word has length 37 [2025-01-08 22:31:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:00,975 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 119 transitions. [2025-01-08 22:31:00,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2025-01-08 22:31:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 119 transitions. [2025-01-08 22:31:00,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-01-08 22:31:00,976 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:00,976 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:00,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-08 22:31:01,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-01-08 22:31:01,177 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:01,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:01,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1907273327, now seen corresponding path program 3 times [2025-01-08 22:31:01,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:01,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344863407] [2025-01-08 22:31:01,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:31:01,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:01,182 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 37 statements into 5 equivalence classes. [2025-01-08 22:31:01,190 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 36 of 37 statements. [2025-01-08 22:31:01,190 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-08 22:31:01,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:01,243 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-08 22:31:01,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:01,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344863407] [2025-01-08 22:31:01,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344863407] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:01,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713726995] [2025-01-08 22:31:01,244 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:31:01,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:01,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:01,246 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:01,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-08 22:31:01,273 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 37 statements into 5 equivalence classes. [2025-01-08 22:31:01,305 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 36 of 37 statements. [2025-01-08 22:31:01,306 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-08 22:31:01,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:01,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 22:31:01,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-08 22:31:01,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:01,355 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-08 22:31:01,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713726995] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:01,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:01,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-01-08 22:31:01,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567997191] [2025-01-08 22:31:01,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:01,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-08 22:31:01,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:01,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-08 22:31:01,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-08 22:31:01,356 INFO L87 Difference]: Start difference. First operand 96 states and 119 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-08 22:31:01,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:01,420 INFO L93 Difference]: Finished difference Result 149 states and 185 transitions. [2025-01-08 22:31:01,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-08 22:31:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2025-01-08 22:31:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:01,421 INFO L225 Difference]: With dead ends: 149 [2025-01-08 22:31:01,422 INFO L226 Difference]: Without dead ends: 88 [2025-01-08 22:31:01,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-01-08 22:31:01,423 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:01,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 67 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:31:01,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-01-08 22:31:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2025-01-08 22:31:01,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.2285714285714286) internal successors, (86), 70 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-08 22:31:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 104 transitions. [2025-01-08 22:31:01,435 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 104 transitions. Word has length 37 [2025-01-08 22:31:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:01,435 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 104 transitions. [2025-01-08 22:31:01,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-08 22:31:01,435 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions. [2025-01-08 22:31:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-08 22:31:01,435 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:01,435 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:01,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-08 22:31:01,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:01,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:01,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:01,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1002159494, now seen corresponding path program 4 times [2025-01-08 22:31:01,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:01,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015975939] [2025-01-08 22:31:01,642 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:31:01,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:01,652 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 38 statements into 2 equivalence classes. [2025-01-08 22:31:01,655 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 33 of 38 statements. [2025-01-08 22:31:01,655 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-08 22:31:01,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-08 22:31:01,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:01,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015975939] [2025-01-08 22:31:01,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015975939] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:01,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031110961] [2025-01-08 22:31:01,694 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:31:01,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:01,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:01,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:01,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-08 22:31:01,728 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 38 statements into 2 equivalence classes. [2025-01-08 22:31:01,736 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 33 of 38 statements. [2025-01-08 22:31:01,736 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-08 22:31:01,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:01,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 22:31:01,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:01,776 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-08 22:31:01,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:01,809 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-08 22:31:01,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031110961] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:01,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:01,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2025-01-08 22:31:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164355440] [2025-01-08 22:31:01,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:01,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-08 22:31:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:01,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-08 22:31:01,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-01-08 22:31:01,810 INFO L87 Difference]: Start difference. First operand 86 states and 104 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:01,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:01,903 INFO L93 Difference]: Finished difference Result 108 states and 131 transitions. [2025-01-08 22:31:01,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-08 22:31:01,903 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2025-01-08 22:31:01,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:01,904 INFO L225 Difference]: With dead ends: 108 [2025-01-08 22:31:01,904 INFO L226 Difference]: Without dead ends: 81 [2025-01-08 22:31:01,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2025-01-08 22:31:01,905 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:01,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 115 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:31:01,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-01-08 22:31:01,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 72. [2025-01-08 22:31:01,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 59 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-08 22:31:01,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2025-01-08 22:31:01,912 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 38 [2025-01-08 22:31:01,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:01,912 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2025-01-08 22:31:01,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:01,912 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2025-01-08 22:31:01,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-01-08 22:31:01,913 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:01,913 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:01,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-08 22:31:02,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:02,114 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:02,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1839664056, now seen corresponding path program 3 times [2025-01-08 22:31:02,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:02,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73336928] [2025-01-08 22:31:02,114 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:31:02,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:02,119 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 43 statements into 7 equivalence classes. [2025-01-08 22:31:02,145 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 37 of 43 statements. [2025-01-08 22:31:02,146 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-08 22:31:02,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 22:31:02,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:02,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73336928] [2025-01-08 22:31:02,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73336928] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:02,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194785171] [2025-01-08 22:31:02,208 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-08 22:31:02,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:02,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:02,210 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:02,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-08 22:31:02,250 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 43 statements into 7 equivalence classes. [2025-01-08 22:31:02,288 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 37 of 43 statements. [2025-01-08 22:31:02,288 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-01-08 22:31:02,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:02,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-08 22:31:02,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 22:31:02,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 22:31:02,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194785171] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:02,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:02,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-01-08 22:31:02,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936369283] [2025-01-08 22:31:02,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:02,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-08 22:31:02,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:02,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-08 22:31:02,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-01-08 22:31:02,357 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-08 22:31:02,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:02,414 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2025-01-08 22:31:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-08 22:31:02,414 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2025-01-08 22:31:02,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:02,415 INFO L225 Difference]: With dead ends: 81 [2025-01-08 22:31:02,415 INFO L226 Difference]: Without dead ends: 73 [2025-01-08 22:31:02,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-01-08 22:31:02,416 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:02,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 110 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:31:02,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2025-01-08 22:31:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2025-01-08 22:31:02,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 60 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-01-08 22:31:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2025-01-08 22:31:02,426 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 43 [2025-01-08 22:31:02,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:02,427 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2025-01-08 22:31:02,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-08 22:31:02,427 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2025-01-08 22:31:02,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-08 22:31:02,427 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:02,427 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:02,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-08 22:31:02,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:02,628 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:02,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:02,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1170044301, now seen corresponding path program 4 times [2025-01-08 22:31:02,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:02,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045284219] [2025-01-08 22:31:02,629 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:31:02,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:02,635 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-01-08 22:31:02,648 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-01-08 22:31:02,651 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-08 22:31:02,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:31:02,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462555894] [2025-01-08 22:31:02,652 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-08 22:31:02,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:02,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:02,654 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:02,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-08 22:31:02,689 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-01-08 22:31:02,797 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-01-08 22:31:02,797 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-08 22:31:02,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:02,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 80 conjuncts are in the unsatisfiable core [2025-01-08 22:31:02,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:02,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-08 22:31:02,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2025-01-08 22:31:03,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:31:03,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2025-01-08 22:31:03,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:31:03,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2025-01-08 22:31:03,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:03,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:03,699 INFO L349 Elim1Store]: treesize reduction 120, result has 30.6 percent of original size [2025-01-08 22:31:03,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 74 treesize of output 118 [2025-01-08 22:31:04,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:31:04,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 27 [2025-01-08 22:31:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:31:04,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:05,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:05,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045284219] [2025-01-08 22:31:05,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:31:05,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462555894] [2025-01-08 22:31:05,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462555894] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:05,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-08 22:31:05,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2025-01-08 22:31:05,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947124698] [2025-01-08 22:31:05,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:05,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-01-08 22:31:05,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:05,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-01-08 22:31:05,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2063, Unknown=0, NotChecked=0, Total=2352 [2025-01-08 22:31:05,462 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 32 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:31:06,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:06,173 INFO L93 Difference]: Finished difference Result 124 states and 151 transitions. [2025-01-08 22:31:06,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-01-08 22:31:06,173 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2025-01-08 22:31:06,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:06,174 INFO L225 Difference]: With dead ends: 124 [2025-01-08 22:31:06,174 INFO L226 Difference]: Without dead ends: 121 [2025-01-08 22:31:06,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=327, Invalid=2429, Unknown=0, NotChecked=0, Total=2756 [2025-01-08 22:31:06,175 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 61 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:06,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 254 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 22:31:06,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-01-08 22:31:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 99. [2025-01-08 22:31:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.2048192771084338) internal successors, (100), 83 states have internal predecessors, (100), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-08 22:31:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2025-01-08 22:31:06,186 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 44 [2025-01-08 22:31:06,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:06,186 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2025-01-08 22:31:06,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:31:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2025-01-08 22:31:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-08 22:31:06,187 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:06,187 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:06,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-08 22:31:06,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-08 22:31:06,387 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:06,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:06,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1845059317, now seen corresponding path program 5 times [2025-01-08 22:31:06,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:06,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334215209] [2025-01-08 22:31:06,388 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:31:06,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:06,394 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 7 equivalence classes. [2025-01-08 22:31:06,418 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 44 of 44 statements. [2025-01-08 22:31:06,419 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-08 22:31:06,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:31:06,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123107648] [2025-01-08 22:31:06,420 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:31:06,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:06,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:06,422 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:06,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-08 22:31:06,458 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 7 equivalence classes. [2025-01-08 22:31:06,584 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 44 of 44 statements. [2025-01-08 22:31:06,584 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-01-08 22:31:06,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:06,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 72 conjuncts are in the unsatisfiable core [2025-01-08 22:31:06,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:06,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-08 22:31:06,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2025-01-08 22:31:06,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:31:06,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2025-01-08 22:31:06,741 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:31:06,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2025-01-08 22:31:07,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:07,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:07,291 INFO L349 Elim1Store]: treesize reduction 200, result has 12.7 percent of original size [2025-01-08 22:31:07,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 8 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 40 case distinctions, treesize of input 84 treesize of output 94 [2025-01-08 22:31:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-08 22:31:07,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:08,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:08,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334215209] [2025-01-08 22:31:08,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:31:08,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123107648] [2025-01-08 22:31:08,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123107648] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:08,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-08 22:31:08,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2025-01-08 22:31:08,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532532353] [2025-01-08 22:31:08,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:08,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-08 22:31:08,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:08,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-08 22:31:08,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1184, Unknown=0, NotChecked=0, Total=1406 [2025-01-08 22:31:08,125 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 22 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:31:08,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:08,515 INFO L93 Difference]: Finished difference Result 152 states and 185 transitions. [2025-01-08 22:31:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-01-08 22:31:08,515 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 22 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2025-01-08 22:31:08,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:08,517 INFO L225 Difference]: With dead ends: 152 [2025-01-08 22:31:08,518 INFO L226 Difference]: Without dead ends: 142 [2025-01-08 22:31:08,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=246, Invalid=1314, Unknown=0, NotChecked=0, Total=1560 [2025-01-08 22:31:08,519 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 25 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:08,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 319 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-08 22:31:08,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-01-08 22:31:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 115. [2025-01-08 22:31:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 96 states have (on average 1.1979166666666667) internal successors, (115), 96 states have internal predecessors, (115), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-08 22:31:08,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 137 transitions. [2025-01-08 22:31:08,537 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 137 transitions. Word has length 44 [2025-01-08 22:31:08,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:08,538 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 137 transitions. [2025-01-08 22:31:08,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 22 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-08 22:31:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 137 transitions. [2025-01-08 22:31:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-08 22:31:08,540 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:08,540 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:08,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-08 22:31:08,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-08 22:31:08,744 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:08,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash 995244585, now seen corresponding path program 5 times [2025-01-08 22:31:08,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:08,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4569674] [2025-01-08 22:31:08,745 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:31:08,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:08,750 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 7 equivalence classes. [2025-01-08 22:31:08,753 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 13 of 45 statements. [2025-01-08 22:31:08,753 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-01-08 22:31:08,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-08 22:31:08,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:08,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4569674] [2025-01-08 22:31:08,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4569674] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:08,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391947709] [2025-01-08 22:31:08,802 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-08 22:31:08,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:08,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:08,806 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:08,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-08 22:31:08,845 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 45 statements into 7 equivalence classes. [2025-01-08 22:31:08,856 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 13 of 45 statements. [2025-01-08 22:31:08,856 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-01-08 22:31:08,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:08,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-08 22:31:08,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-08 22:31:08,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-08 22:31:08,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391947709] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:08,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:08,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2025-01-08 22:31:08,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244218101] [2025-01-08 22:31:08,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:08,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-08 22:31:08,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:08,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-08 22:31:08,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2025-01-08 22:31:08,931 INFO L87 Difference]: Start difference. First operand 115 states and 137 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:09,062 INFO L93 Difference]: Finished difference Result 247 states and 304 transitions. [2025-01-08 22:31:09,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-08 22:31:09,062 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2025-01-08 22:31:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:09,064 INFO L225 Difference]: With dead ends: 247 [2025-01-08 22:31:09,065 INFO L226 Difference]: Without dead ends: 174 [2025-01-08 22:31:09,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 80 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2025-01-08 22:31:09,066 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 21 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:09,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 211 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:31:09,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-01-08 22:31:09,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 155. [2025-01-08 22:31:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 130 states have (on average 1.2076923076923076) internal successors, (157), 130 states have internal predecessors, (157), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-08 22:31:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 187 transitions. [2025-01-08 22:31:09,088 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 187 transitions. Word has length 45 [2025-01-08 22:31:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:09,088 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 187 transitions. [2025-01-08 22:31:09,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 187 transitions. [2025-01-08 22:31:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-08 22:31:09,089 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:09,089 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:09,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-08 22:31:09,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:09,290 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:09,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1913544476, now seen corresponding path program 6 times [2025-01-08 22:31:09,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:09,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766158533] [2025-01-08 22:31:09,290 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-08 22:31:09,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:09,296 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 7 equivalence classes. [2025-01-08 22:31:09,327 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 45 of 45 statements. [2025-01-08 22:31:09,327 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-08 22:31:09,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 22:31:09,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:09,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766158533] [2025-01-08 22:31:09,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766158533] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:09,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297635389] [2025-01-08 22:31:09,471 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-08 22:31:09,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:09,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:09,474 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:09,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-08 22:31:09,513 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 45 statements into 7 equivalence classes. [2025-01-08 22:31:09,602 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 45 of 45 statements. [2025-01-08 22:31:09,603 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-01-08 22:31:09,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:09,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-08 22:31:09,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 22:31:09,665 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 22:31:09,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297635389] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:09,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:09,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-01-08 22:31:09,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215713974] [2025-01-08 22:31:09,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:09,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-08 22:31:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:09,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-08 22:31:09,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2025-01-08 22:31:09,713 INFO L87 Difference]: Start difference. First operand 155 states and 187 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-08 22:31:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:09,918 INFO L93 Difference]: Finished difference Result 223 states and 273 transitions. [2025-01-08 22:31:09,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-08 22:31:09,919 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2025-01-08 22:31:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:09,921 INFO L225 Difference]: With dead ends: 223 [2025-01-08 22:31:09,921 INFO L226 Difference]: Without dead ends: 186 [2025-01-08 22:31:09,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2025-01-08 22:31:09,922 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 38 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:09,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 123 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:31:09,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-01-08 22:31:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 174. [2025-01-08 22:31:09,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 149 states have (on average 1.2147651006711409) internal successors, (181), 149 states have internal predecessors, (181), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-08 22:31:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 211 transitions. [2025-01-08 22:31:09,947 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 211 transitions. Word has length 45 [2025-01-08 22:31:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:09,947 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 211 transitions. [2025-01-08 22:31:09,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-08 22:31:09,947 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 211 transitions. [2025-01-08 22:31:09,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-01-08 22:31:09,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:09,948 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:09,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-08 22:31:10,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:10,148 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:10,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:10,148 INFO L85 PathProgramCache]: Analyzing trace with hash 296607028, now seen corresponding path program 1 times [2025-01-08 22:31:10,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:10,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413580412] [2025-01-08 22:31:10,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:31:10,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:10,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-08 22:31:10,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-08 22:31:10,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:31:10,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:31:10,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148218286] [2025-01-08 22:31:10,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:31:10,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:10,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:10,161 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:10,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-08 22:31:10,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-08 22:31:10,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-08 22:31:10,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:31:10,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:10,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-01-08 22:31:10,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:10,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-08 22:31:10,388 INFO L349 Elim1Store]: treesize reduction 28, result has 50.0 percent of original size [2025-01-08 22:31:10,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 46 [2025-01-08 22:31:10,642 INFO L349 Elim1Store]: treesize reduction 101, result has 9.8 percent of original size [2025-01-08 22:31:10,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 33 [2025-01-08 22:31:10,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-01-08 22:31:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 5 proven. 38 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-08 22:31:10,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:14,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:14,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413580412] [2025-01-08 22:31:14,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-08 22:31:14,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148218286] [2025-01-08 22:31:14,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148218286] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:14,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-08 22:31:14,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2025-01-08 22:31:14,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291750355] [2025-01-08 22:31:14,918 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:14,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-08 22:31:14,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:14,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-08 22:31:14,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=472, Unknown=1, NotChecked=0, Total=600 [2025-01-08 22:31:14,919 INFO L87 Difference]: Start difference. First operand 174 states and 211 transitions. Second operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-08 22:31:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:15,279 INFO L93 Difference]: Finished difference Result 219 states and 264 transitions. [2025-01-08 22:31:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-08 22:31:15,280 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2025-01-08 22:31:15,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:15,281 INFO L225 Difference]: With dead ends: 219 [2025-01-08 22:31:15,281 INFO L226 Difference]: Without dead ends: 184 [2025-01-08 22:31:15,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 45 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=205, Invalid=850, Unknown=1, NotChecked=0, Total=1056 [2025-01-08 22:31:15,282 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 44 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:15,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 147 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-08 22:31:15,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-01-08 22:31:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 142. [2025-01-08 22:31:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 124 states have (on average 1.2419354838709677) internal successors, (154), 124 states have internal predecessors, (154), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-01-08 22:31:15,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 176 transitions. [2025-01-08 22:31:15,324 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 176 transitions. Word has length 49 [2025-01-08 22:31:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:15,324 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 176 transitions. [2025-01-08 22:31:15,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 17 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-08 22:31:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 176 transitions. [2025-01-08 22:31:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-01-08 22:31:15,325 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:15,325 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:15,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-08 22:31:15,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-08 22:31:15,525 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:15,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1263105171, now seen corresponding path program 7 times [2025-01-08 22:31:15,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:15,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616867864] [2025-01-08 22:31:15,526 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-08 22:31:15,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:15,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-08 22:31:15,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-08 22:31:15,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:31:15,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 24 proven. 23 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-08 22:31:15,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:31:15,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616867864] [2025-01-08 22:31:15,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616867864] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-08 22:31:15,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217055952] [2025-01-08 22:31:15,616 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-08 22:31:15,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:15,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:15,620 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:15,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-08 22:31:15,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-08 22:31:15,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-08 22:31:15,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:31:15,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:15,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-08 22:31:15,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 43 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-08 22:31:15,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-08 22:31:15,813 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 35 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-08 22:31:15,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217055952] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-08 22:31:15,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-08 22:31:15,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2025-01-08 22:31:15,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326287596] [2025-01-08 22:31:15,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-08 22:31:15,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-08 22:31:15,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:31:15,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-08 22:31:15,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2025-01-08 22:31:15,817 INFO L87 Difference]: Start difference. First operand 142 states and 176 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:16,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:31:16,023 INFO L93 Difference]: Finished difference Result 177 states and 217 transitions. [2025-01-08 22:31:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-08 22:31:16,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2025-01-08 22:31:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:31:16,024 INFO L225 Difference]: With dead ends: 177 [2025-01-08 22:31:16,024 INFO L226 Difference]: Without dead ends: 109 [2025-01-08 22:31:16,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2025-01-08 22:31:16,025 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 5 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-08 22:31:16,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 122 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-08 22:31:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-01-08 22:31:16,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2025-01-08 22:31:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 88 states have internal predecessors, (104), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-08 22:31:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2025-01-08 22:31:16,055 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 48 [2025-01-08 22:31:16,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:31:16,058 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2025-01-08 22:31:16,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-08 22:31:16,059 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2025-01-08 22:31:16,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-01-08 22:31:16,059 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:31:16,059 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:31:16,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-08 22:31:16,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-08 22:31:16,260 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:31:16,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:31:16,260 INFO L85 PathProgramCache]: Analyzing trace with hash -363326227, now seen corresponding path program 1 times [2025-01-08 22:31:16,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:31:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110452272] [2025-01-08 22:31:16,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:31:16,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:31:16,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-08 22:31:16,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-08 22:31:16,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:31:16,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:31:16,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115806046] [2025-01-08 22:31:16,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:31:16,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:31:16,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:31:16,293 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:31:16,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-08 22:31:16,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-08 22:31:16,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-08 22:31:16,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:31:16,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:31:16,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-01-08 22:31:16,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-08 22:31:16,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-01-08 22:31:16,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2025-01-08 22:31:16,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:16,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:16,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:31:16,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2025-01-08 22:31:16,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:16,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:16,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:16,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:16,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-08 22:31:16,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2025-01-08 22:31:17,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:17,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:17,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:17,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:17,230 INFO L349 Elim1Store]: treesize reduction 72, result has 48.9 percent of original size [2025-01-08 22:31:17,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 96 [2025-01-08 22:31:20,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:20,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:20,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:20,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:31:20,232 INFO L349 Elim1Store]: treesize reduction 449, result has 30.1 percent of original size [2025-01-08 22:31:20,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 210 treesize of output 264 [2025-01-08 22:32:02,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:32:02,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:32:02,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-08 22:32:03,021 INFO L190 IndexEqualityManager]: detected not equals via solver